Mutations can be what three things?
Harmful, beneficial, or neutral
Sexual reproduction requires ____ parents.
Two/2
Fossils at the bottom of the rock layers are older or younger?
Older
Is this homologous, analogous, or vestigial?
Homologous
A hard shell is an example of a _____ trait(structural, behavioral, of physiological).
Structural
Characteristics that show are?
Traits
Which form of reproduction takes longer?
Sexual reproduction
What states that rock layers further down are older?
Law of Superposition
Is this homologous, analogous, or vestigial?
Wings of a bat, wings of a butterfly, wings of a bird.
Analogous
A mating dance is an example of a _____ trait(structural, behavioral, of physiological).
Behavioral
_______ is the physical characteristic that results from the genotype.
Phenotype
What are the cons of asexual reproduction?
Less variety, vulnerable to disease, less adaptable
What are index fossils?
Fossils that can be used to determine relative age of other fossils that are widespread, short-lived, and unique.
Is this homologous, analogous, or vestigial?
Wisdom teeth
Vestigal
Waiting to lay eggs until favorable conditions is an example of a _____ trait(structural, behavioral, of physiological).
Physiological
______ is an organism's genetic makeup and the combination of alleles it has for a trait.
Genotype
What are the pros of sexual reproduction?
More variety, more disease resistant, better adaptability.
Is this relative or absolute age:Khloe is younger than Addie.
Relative age
A structure that no longer has use in modern-day organisms is a _____ struture
Vestigial
Blue eyes is an example of a _____ trait (dominant or recessive).
Recessive
One gene is called an?
Allele
Which form of reproduction has less wasted time and energy?
Asexual reproduction
Is this an example of relative or absolute age: Gina is 13.
Absolute age.
DNA is a ______ shape
Double helix.
Brown eyes is an example of a _____ trait (dominant or recessive).
Dominant